subforest {semtree}

Creates subsets of trees from forests

Description

Creates subsets of a forest. This can be used to subset a number of trees, e.g. from:(from+num), or to remove all null (type="nonnull") trees that were due to errors, or to randomly select a sub forest (type=random).

Usage

subforest(forest, num = NULL, type = "nonnull", from = 1)

Arguments

forest

A SEM Forest object.

num

Number of trees to select.

type

Either 'random' or 'nonnull' or NULL. First selects a random subset, second selects all non-null trees, third allows subsetting trees.

from

Starting index if type=NULL.

Author(s)

Andreas M. Brandmaier, John J. Prindle

References

Brandmaier, A.M., Oertzen, T. v., McArdle, J.J., & Lindenberger, U. (2013). Structural equation model trees. Psychological Methods, 18(1), 71-86.